..FDA found no credible evidence to support health claims for calcium and a reduced risk of breast and prostate cancers. The agency did find limited evidence for the relationship between calcium intake and colorectal cancer risk...

The U.S. Food and Drug Administration's evidence-based review for qualified health claims: tomatoes, lycopene, and cancer

..On the basis of this evidence-based review, the FDA concluded that no credible evidence exists for a health claim about the intake of lutein or zeaxanthin (or both) and the risk of age-related macular degeneration or cataracts...